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| author | Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> | 2009-04-02 08:21:10 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-04-06 03:54:48 +0200 |
| commit | 8321fc0113a1be0cdfc9cbad1db1de74073acd8f (patch) | |
| tree | 88b7ccf16d17721b547ec1d153df0da73e232076 /sound/atmel | |
| parent | 0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff) | |
| download | linux-8321fc0113a1be0cdfc9cbad1db1de74073acd8f.tar.bz2 | |
ALSA: snd-atmel-ac97c: cleanup register definitions
This patch will remove traces of channel B registers, since they are not
used by the AC97C driver. Channel B might be used for other purposes.
The driver also adds channel status bits TXEMPTY and OVRUN and a
AC97C_CH_MASK macro to ease clearing a channel settings.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/atmel')
| -rw-r--r-- | sound/atmel/ac97c.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/atmel/ac97c.h b/sound/atmel/ac97c.h index c17bd5825980..ecbba5021c80 100644 --- a/sound/atmel/ac97c.h +++ b/sound/atmel/ac97c.h @@ -1,5 +1,5 @@ /* - * Register definitions for the Atmel AC97C controller + * Register definitions for Atmel AC97C * * Copyright (C) 2005-2009 Atmel Corporation * @@ -17,10 +17,6 @@ #define AC97C_CATHR 0x24 #define AC97C_CASR 0x28 #define AC97C_CAMR 0x2c -#define AC97C_CBRHR 0x30 -#define AC97C_CBTHR 0x34 -#define AC97C_CBSR 0x38 -#define AC97C_CBMR 0x3c #define AC97C_CORHR 0x40 #define AC97C_COTHR 0x44 #define AC97C_COSR 0x48 @@ -46,8 +42,10 @@ #define AC97C_MR_VRA (1 << 2) #define AC97C_CSR_TXRDY (1 << 0) +#define AC97C_CSR_TXEMPTY (1 << 1) #define AC97C_CSR_UNRUN (1 << 2) #define AC97C_CSR_RXRDY (1 << 4) +#define AC97C_CSR_OVRUN (1 << 5) #define AC97C_CSR_ENDTX (1 << 10) #define AC97C_CSR_ENDRX (1 << 14) @@ -61,11 +59,15 @@ #define AC97C_CMR_DMAEN (1 << 22) #define AC97C_SR_CAEVT (1 << 3) +#define AC97C_SR_COEVT (1 << 2) +#define AC97C_SR_WKUP (1 << 1) +#define AC97C_SR_SOF (1 << 0) +#define AC97C_CH_MASK(slot) \ + (0x7 << (3 * (AC97_SLOT_##slot - 3))) #define AC97C_CH_ASSIGN(slot, channel) \ (AC97C_CHANNEL_##channel << (3 * (AC97_SLOT_##slot - 3))) #define AC97C_CHANNEL_NONE 0x0 #define AC97C_CHANNEL_A 0x1 -#define AC97C_CHANNEL_B 0x2 #endif /* __SOUND_ATMEL_AC97C_H */ |